Andreas Tolfsen ❲:ato❳ Reporter
	Description • 6 years ago

The TestResolver class uses self.vcs.get_outgoing_files('AM')
[1] to determine which files have been added or modified when the
"what" argument to "./mach test" is empty.  This falls back to the
IMPACTED_TESTS annotations and is meant to run the tests associated
with the modified files.

Steps to reproduce are to inspect the return value of this line.
In a git repository it is always an empty array.

  [1] https://searchfox.org/mozilla-central/rev/0bc3300a3abc4b12f14bd0ddf77ce8aa8125043c/testing/mozbase/moztest/moztest/resolve.py#412